Types of Triangles

Front

What is a triangle?

Back

A triangle is a three-sided polygon.

Front

What are the three types of triangles based on side lengths?

Back

1. Equilateral Triangle: All sides are equal. 2. Isosceles Triangle: Two sides are equal. 3. Scalene Triangle: All sides are different.

Front

What is an equilateral triangle?

Back

An equilateral triangle is a triangle where all three sides are of equal length and all three angles are equal (each measuring 60 degrees).

Front

What is an isosceles triangle?

Back

An isosceles triangle is a triangle that has at least two sides of equal length and the angles opposite those sides are equal.

Front

What is a scalene triangle?

Back

A scalene triangle is a triangle where all three sides are of different lengths and all three angles are different.

Front

What is the sum of the angles in any triangle?

Back

The sum of the angles in any triangle is always 180 degrees.

Front

How can you identify an equilateral triangle?

Back

An equilateral triangle can be identified by its three equal sides and three equal angles, each measuring 60 degrees.

Front

How can you identify an isosceles triangle?

Back

An isosceles triangle can be identified by having at least two equal sides and the angles opposite those sides being equal.

Front

How can you identify a scalene triangle?

Back

A scalene triangle can be identified by having all sides of different lengths and all angles of different measures.

Front

What is a right triangle?

Back

A right triangle is a triangle that has one angle measuring 90 degrees.